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<script src="/socket.io/socket.io.jsresource: the server responded with a status of 404 (Not Found) http://localhost/socket.io/socket.io.js
假设我有a.js和下面的类 constructor (url) { this.conneciton = null;}
this.connection = await someThidPartyModule.connect(url);}
// here I would like to do something li